Gecko [ www.leshallesdegournay.geraud-market.com ]

Name	Size	Permission	Date
ArgImagePlugin.py	12.17 KB	-rw-r--r--	2024-02-22 08:02
ArgImagePlugin.pyc	12.79 KB	-rw-r--r--	2024-02-22 08:02
ArgImagePlugin.pyo	12.79 KB	-rw-r--r--	2024-02-22 08:02
BdfFontFile.py	3.27 KB	-rw-r--r--	2024-02-22 08:02
BdfFontFile.pyc	2.97 KB	-rw-r--r--	2024-02-22 08:02
BdfFontFile.pyo	2.97 KB	-rw-r--r--	2024-02-22 08:02
BmpImagePlugin.py	6.52 KB	-rw-r--r--	2024-02-22 08:02
BmpImagePlugin.pyc	5.34 KB	-rw-r--r--	2024-02-22 08:02
BmpImagePlugin.pyo	5.34 KB	-rw-r--r--	2024-02-22 08:02
BufrStubImagePlugin.py	1.46 KB	-rw-r--r--	2024-02-22 08:02
BufrStubImagePlugin.pyc	2 KB	-rw-r--r--	2024-02-22 08:02
BufrStubImagePlugin.pyo	2 KB	-rw-r--r--	2024-02-22 08:02
ContainerIO.py	2.54 KB	-rw-r--r--	2024-02-22 08:02
ContainerIO.pyc	2.09 KB	-rw-r--r--	2024-02-22 08:02
ContainerIO.pyo	2.09 KB	-rw-r--r--	2024-02-22 08:02
CurImagePlugin.py	1.89 KB	-rw-r--r--	2024-02-22 08:02
CurImagePlugin.pyc	1.64 KB	-rw-r--r--	2024-02-22 08:02
CurImagePlugin.pyo	1.64 KB	-rw-r--r--	2024-02-22 08:02
DcxImagePlugin.py	1.76 KB	-rw-r--r--	2024-02-22 08:02
DcxImagePlugin.pyc	1.9 KB	-rw-r--r--	2024-02-22 08:02
DcxImagePlugin.pyo	1.9 KB	-rw-r--r--	2024-02-22 08:02
EpsImagePlugin.py	10.64 KB	-rw-r--r--	2024-02-22 08:02
EpsImagePlugin.pyc	9.44 KB	-rw-r--r--	2024-02-22 08:02
EpsImagePlugin.pyo	9.44 KB	-rw-r--r--	2024-02-22 08:02
ExifTags.py	4.69 KB	-rw-r--r--	2024-02-22 08:02
ExifTags.pyc	4.81 KB	-rw-r--r--	2024-02-22 08:02
ExifTags.pyo	4.81 KB	-rw-r--r--	2024-02-22 08:02
FitsStubImagePlugin.py	1.61 KB	-rw-r--r--	2024-02-22 08:02
FitsStubImagePlugin.pyc	2.01 KB	-rw-r--r--	2024-02-22 08:02
FitsStubImagePlugin.pyo	2.01 KB	-rw-r--r--	2024-02-22 08:02
FliImagePlugin.py	3.37 KB	-rw-r--r--	2024-02-22 08:02
FliImagePlugin.pyc	3.5 KB	-rw-r--r--	2024-02-22 08:02
FliImagePlugin.pyo	3.5 KB	-rw-r--r--	2024-02-22 08:02
FontFile.py	3.32 KB	-rw-r--r--	2024-02-22 08:02
FontFile.pyc	3.5 KB	-rw-r--r--	2024-02-22 08:02
FontFile.pyo	3.5 KB	-rw-r--r--	2024-02-22 08:02
FpxImagePlugin.py	6.04 KB	-rw-r--r--	2024-02-22 08:02
FpxImagePlugin.pyc	4.55 KB	-rw-r--r--	2024-02-22 08:02
FpxImagePlugin.pyo	4.55 KB	-rw-r--r--	2024-02-22 08:02
GbrImagePlugin.py	1.54 KB	-rw-r--r--	2024-02-22 08:02
GbrImagePlugin.pyc	1.81 KB	-rw-r--r--	2024-02-22 08:02
GbrImagePlugin.pyo	1.81 KB	-rw-r--r--	2024-02-22 08:02
GdImageFile.py	2.11 KB	-rw-r--r--	2024-02-22 08:02
GdImageFile.pyc	1.68 KB	-rw-r--r--	2024-02-22 08:02
GdImageFile.pyo	1.68 KB	-rw-r--r--	2024-02-22 08:02
GifImagePlugin.py	11.09 KB	-rw-r--r--	2024-02-22 08:02
GifImagePlugin.pyc	7.95 KB	-rw-r--r--	2024-02-22 08:02
GifImagePlugin.pyo	7.95 KB	-rw-r--r--	2024-02-22 08:02
GimpGradientFile.py	3.1 KB	-rw-r--r--	2024-02-22 08:02
GimpGradientFile.pyc	3.61 KB	-rw-r--r--	2024-02-22 08:02
GimpGradientFile.pyo	3.61 KB	-rw-r--r--	2024-02-22 08:02
GimpPaletteFile.py	1.3 KB	-rw-r--r--	2024-02-22 08:02
GimpPaletteFile.pyc	1.47 KB	-rw-r--r--	2024-02-22 08:02
GimpPaletteFile.pyo	1.47 KB	-rw-r--r--	2024-02-22 08:02
GribStubImagePlugin.py	1.47 KB	-rw-r--r--	2024-02-22 08:02
GribStubImagePlugin.pyc	2.01 KB	-rw-r--r--	2024-02-22 08:02
GribStubImagePlugin.pyo	2.01 KB	-rw-r--r--	2024-02-22 08:02
Hdf5StubImagePlugin.py	1.51 KB	-rw-r--r--	2024-02-22 08:02
Hdf5StubImagePlugin.pyc	2.01 KB	-rw-r--r--	2024-02-22 08:02
Hdf5StubImagePlugin.pyo	2.01 KB	-rw-r--r--	2024-02-22 08:02
IcnsImagePlugin.py	6.09 KB	-rw-r--r--	2024-02-22 08:02
IcnsImagePlugin.pyc	6.56 KB	-rw-r--r--	2024-02-22 08:02
IcnsImagePlugin.pyo	6.56 KB	-rw-r--r--	2024-02-22 08:02
IcoImagePlugin.py	1.84 KB	-rw-r--r--	2024-02-22 08:02
IcoImagePlugin.pyc	1.59 KB	-rw-r--r--	2024-02-22 08:02
IcoImagePlugin.pyo	1.59 KB	-rw-r--r--	2024-02-22 08:02
ImImagePlugin.py	9.8 KB	-rw-r--r--	2024-02-22 08:02
ImImagePlugin.pyc	8.04 KB	-rw-r--r--	2024-02-22 08:02
ImImagePlugin.pyo	8.04 KB	-rw-r--r--	2024-02-22 08:02
Image.py	67.81 KB	-rw-r--r--	2024-02-22 08:02
Image.pyc	39.15 KB	-rw-r--r--	2024-02-22 08:02
Image.pyo	39.15 KB	-rw-r--r--	2024-02-22 08:02
ImageChops.py	7.25 KB	-rw-r--r--	2024-02-22 08:02
ImageChops.pyc	4.97 KB	-rw-r--r--	2024-02-22 08:02
ImageChops.pyo	4.97 KB	-rw-r--r--	2024-02-22 08:02
ImageCms.py	29.63 KB	-rw-r--r--	2024-02-22 08:02
ImageCms.pyc	12.13 KB	-rw-r--r--	2024-02-22 08:02
ImageCms.pyo	12.13 KB	-rw-r--r--	2024-02-22 08:02
ImageColor.py	7.04 KB	-rw-r--r--	2024-02-22 08:02
ImageColor.pyc	6.92 KB	-rw-r--r--	2024-02-22 08:02
ImageColor.pyo	6.92 KB	-rw-r--r--	2024-02-22 08:02
ImageDraw.py	11.36 KB	-rw-r--r--	2024-02-22 08:02
ImageDraw.pyc	8.63 KB	-rw-r--r--	2024-02-22 08:02
ImageDraw.pyo	8.63 KB	-rw-r--r--	2024-02-22 08:02
ImageDraw2.py	3.11 KB	-rw-r--r--	2024-02-22 08:02
ImageDraw2.pyc	5.1 KB	-rw-r--r--	2024-02-22 08:02
ImageDraw2.pyo	5.1 KB	-rw-r--r--	2024-02-22 08:02
ImageEnhance.py	2.71 KB	-rw-r--r--	2024-02-22 08:02
ImageEnhance.pyc	2.54 KB	-rw-r--r--	2024-02-22 08:02
ImageEnhance.pyo	2.54 KB	-rw-r--r--	2024-02-22 08:02
ImageFile.py	14.72 KB	-rw-r--r--	2024-02-22 08:02
ImageFile.pyc	9.74 KB	-rw-r--r--	2024-02-22 08:02
ImageFile.pyo	9.64 KB	-rw-r--r--	2024-02-22 08:02
ImageFileIO.py	968 B	-rw-r--r--	2024-02-22 08:02
ImageFileIO.pyc	614 B	-rw-r--r--	2024-02-22 08:02
ImageFileIO.pyo	614 B	-rw-r--r--	2024-02-22 08:02
ImageFilter.py	6.51 KB	-rw-r--r--	2024-02-22 08:02
ImageFilter.pyc	8.7 KB	-rw-r--r--	2024-02-22 08:02
ImageFilter.pyo	8.7 KB	-rw-r--r--	2024-02-22 08:02
ImageFont.py	17.38 KB	-rw-r--r--	2024-02-22 08:02
ImageFont.pyc	15.96 KB	-rw-r--r--	2024-02-22 08:02
ImageFont.pyo	15.96 KB	-rw-r--r--	2024-02-22 08:02
ImageGL.py	483 B	-rw-r--r--	2024-02-22 08:02
ImageGL.pyc	394 B	-rw-r--r--	2024-02-22 08:02
ImageGL.pyo	394 B	-rw-r--r--	2024-02-22 08:02
ImageGrab.py	1.85 KB	-rw-r--r--	2024-02-22 08:02
ImageGrab.pyc	1.07 KB	-rw-r--r--	2024-02-22 08:02
ImageGrab.pyo	1.07 KB	-rw-r--r--	2024-02-22 08:02
ImageMath.py	7.66 KB	-rw-r--r--	2024-02-22 08:02
ImageMath.pyc	10.94 KB	-rw-r--r--	2024-02-22 08:02
ImageMath.pyo	10.94 KB	-rw-r--r--	2024-02-22 08:02
ImageMode.py	1.27 KB	-rw-r--r--	2024-02-22 08:02
ImageMode.pyc	1.34 KB	-rw-r--r--	2024-02-22 08:02
ImageMode.pyo	1.34 KB	-rw-r--r--	2024-02-22 08:02
ImageOps.py	13 KB	-rw-r--r--	2024-02-22 08:02
ImageOps.pyc	8.43 KB	-rw-r--r--	2024-02-22 08:02
ImageOps.pyo	8.38 KB	-rw-r--r--	2024-02-22 08:02
ImagePalette.py	5.4 KB	-rw-r--r--	2024-02-22 08:02
ImagePalette.pyc	5.7 KB	-rw-r--r--	2024-02-22 08:02
ImagePalette.pyo	5.7 KB	-rw-r--r--	2024-02-22 08:02
ImagePath.py	1.32 KB	-rw-r--r--	2024-02-22 08:02
ImagePath.pyc	1.36 KB	-rw-r--r--	2024-02-22 08:02
ImagePath.pyo	1.36 KB	-rw-r--r--	2024-02-22 08:02
ImageSequence.py	792 B	-rw-r--r--	2024-02-22 08:02
ImageSequence.pyc	903 B	-rw-r--r--	2024-02-22 08:02
ImageSequence.pyo	903 B	-rw-r--r--	2024-02-22 08:02
ImageShow.py	4.45 KB	-rw-r--r--	2024-02-22 08:02
ImageShow.pyc	5.22 KB	-rw-r--r--	2024-02-22 08:02
ImageShow.pyo	5.22 KB	-rw-r--r--	2024-02-22 08:02
ImageStat.py	4.22 KB	-rw-r--r--	2024-02-22 08:02
ImageStat.pyc	4.66 KB	-rw-r--r--	2024-02-22 08:02
ImageStat.pyo	4.66 KB	-rw-r--r--	2024-02-22 08:02
ImageTransform.py	2.8 KB	-rw-r--r--	2024-02-22 08:02
ImageTransform.pyc	1.87 KB	-rw-r--r--	2024-02-22 08:02
ImageTransform.pyo	1.87 KB	-rw-r--r--	2024-02-22 08:02
ImageWin.py	6.73 KB	-rw-r--r--	2024-02-22 08:02
ImageWin.pyc	6.55 KB	-rw-r--r--	2024-02-22 08:02
ImageWin.pyo	6.55 KB	-rw-r--r--	2024-02-22 08:02
ImtImagePlugin.py	2.17 KB	-rw-r--r--	2024-02-22 08:02
ImtImagePlugin.pyc	1.56 KB	-rw-r--r--	2024-02-22 08:02
ImtImagePlugin.pyo	1.56 KB	-rw-r--r--	2024-02-22 08:02
IptcImagePlugin.py	7.52 KB	-rw-r--r--	2024-02-22 08:02
IptcImagePlugin.pyc	6.29 KB	-rw-r--r--	2024-02-22 08:02
IptcImagePlugin.pyo	6.29 KB	-rw-r--r--	2024-02-22 08:02
JpegImagePlugin.py	19.42 KB	-rw-r--r--	2024-02-22 08:02
JpegImagePlugin.pyc	16.24 KB	-rw-r--r--	2024-02-22 08:02
JpegImagePlugin.pyo	16.24 KB	-rw-r--r--	2024-02-22 08:02
JpegPresets.py	12.05 KB	-rw-r--r--	2024-02-22 08:02
JpegPresets.pyc	6.3 KB	-rw-r--r--	2024-02-22 08:02
JpegPresets.pyo	6.3 KB	-rw-r--r--	2024-02-22 08:02
McIdasImagePlugin.py	1.69 KB	-rw-r--r--	2024-02-22 08:02
McIdasImagePlugin.pyc	1.67 KB	-rw-r--r--	2024-02-22 08:02
McIdasImagePlugin.pyo	1.67 KB	-rw-r--r--	2024-02-22 08:02
MicImagePlugin.py	2.12 KB	-rw-r--r--	2024-02-22 08:02
MicImagePlugin.pyc	2.09 KB	-rw-r--r--	2024-02-22 08:02
MicImagePlugin.pyo	2.09 KB	-rw-r--r--	2024-02-22 08:02
MpegImagePlugin.py	1.79 KB	-rw-r--r--	2024-02-22 08:02
MpegImagePlugin.pyc	2.49 KB	-rw-r--r--	2024-02-22 08:02
MpegImagePlugin.pyo	2.49 KB	-rw-r--r--	2024-02-22 08:02
MspImagePlugin.py	2.12 KB	-rw-r--r--	2024-02-22 08:02
MspImagePlugin.pyc	2.39 KB	-rw-r--r--	2024-02-22 08:02
MspImagePlugin.pyo	2.39 KB	-rw-r--r--	2024-02-22 08:02
OleFileIO.py	15.92 KB	-rw-r--r--	2024-02-22 08:02
OleFileIO.pyc	12.62 KB	-rw-r--r--	2024-02-22 08:02
OleFileIO.pyo	12.62 KB	-rw-r--r--	2024-02-22 08:02
PSDraw.py	5.57 KB	-rw-r--r--	2024-02-22 08:02
PSDraw.pyc	5.5 KB	-rw-r--r--	2024-02-22 08:02
PSDraw.pyo	5.5 KB	-rw-r--r--	2024-02-22 08:02
PaletteFile.py	1.08 KB	-rw-r--r--	2024-02-22 08:02
PaletteFile.pyc	1.31 KB	-rw-r--r--	2024-02-22 08:02
PaletteFile.pyo	1.31 KB	-rw-r--r--	2024-02-22 08:02
PalmImagePlugin.py	9.33 KB	-rw-r--r--	2024-02-22 08:02
PalmImagePlugin.pyc	9.39 KB	-rw-r--r--	2024-02-22 08:02
PalmImagePlugin.pyo	9.39 KB	-rw-r--r--	2024-02-22 08:02
PcdImagePlugin.py	1.77 KB	-rw-r--r--	2024-02-22 08:02
PcdImagePlugin.pyc	1.73 KB	-rw-r--r--	2024-02-22 08:02
PcdImagePlugin.pyo	1.73 KB	-rw-r--r--	2024-02-22 08:02
PcfFontFile.py	6.03 KB	-rw-r--r--	2024-02-22 08:02
PcfFontFile.pyc	6.2 KB	-rw-r--r--	2024-02-22 08:02
PcfFontFile.pyo	6.2 KB	-rw-r--r--	2024-02-22 08:02
PcxImagePlugin.py	4.53 KB	-rw-r--r--	2024-02-22 08:02
PcxImagePlugin.pyc	3.84 KB	-rw-r--r--	2024-02-22 08:02
PcxImagePlugin.pyo	3.78 KB	-rw-r--r--	2024-02-22 08:02
PdfImagePlugin.py	5.73 KB	-rw-r--r--	2024-02-22 08:02
PdfImagePlugin.pyc	5.04 KB	-rw-r--r--	2024-02-22 08:02
PdfImagePlugin.pyo	5.04 KB	-rw-r--r--	2024-02-22 08:02
PixarImagePlugin.py	1.57 KB	-rw-r--r--	2024-02-22 08:02
PixarImagePlugin.pyc	1.24 KB	-rw-r--r--	2024-02-22 08:02
PixarImagePlugin.pyo	1.24 KB	-rw-r--r--	2024-02-22 08:02
PngImagePlugin.py	18.19 KB	-rw-r--r--	2024-02-22 08:02
PngImagePlugin.pyc	17.9 KB	-rw-r--r--	2024-02-22 08:02
PngImagePlugin.pyo	17.9 KB	-rw-r--r--	2024-02-22 08:02
PpmImagePlugin.py	3.23 KB	-rw-r--r--	2024-02-22 08:02
PpmImagePlugin.pyc	2.94 KB	-rw-r--r--	2024-02-22 08:02
PpmImagePlugin.pyo	2.94 KB	-rw-r--r--	2024-02-22 08:02
PsdImagePlugin.py	7.28 KB	-rw-r--r--	2024-02-22 08:02
PsdImagePlugin.pyc	6.17 KB	-rw-r--r--	2024-02-22 08:02
PsdImagePlugin.pyo	6.17 KB	-rw-r--r--	2024-02-22 08:02
SgiImagePlugin.py	2.05 KB	-rw-r--r--	2024-02-22 08:02
SgiImagePlugin.pyc	2 KB	-rw-r--r--	2024-02-22 08:02
SgiImagePlugin.pyo	2 KB	-rw-r--r--	2024-02-22 08:02
SunImagePlugin.py	1.9 KB	-rw-r--r--	2024-02-22 08:02
SunImagePlugin.pyc	1.99 KB	-rw-r--r--	2024-02-22 08:02
SunImagePlugin.pyo	1.99 KB	-rw-r--r--	2024-02-22 08:02
TarIO.py	1.19 KB	-rw-r--r--	2024-02-22 08:02
TarIO.pyc	1.08 KB	-rw-r--r--	2024-02-22 08:02
TarIO.pyo	1.08 KB	-rw-r--r--	2024-02-22 08:02
TgaImagePlugin.py	4.83 KB	-rw-r--r--	2024-02-22 08:02
TgaImagePlugin.pyc	4.14 KB	-rw-r--r--	2024-02-22 08:02
TgaImagePlugin.pyo	4.14 KB	-rw-r--r--	2024-02-22 08:02
TiffImagePlugin.py	34.05 KB	-rw-r--r--	2024-02-22 08:02
TiffImagePlugin.pyc	26.2 KB	-rw-r--r--	2024-02-22 08:02
TiffImagePlugin.pyo	26.07 KB	-rw-r--r--	2024-02-22 08:02
TiffTags.py	4.53 KB	-rw-r--r--	2024-02-22 08:02
TiffTags.pyc	4.9 KB	-rw-r--r--	2024-02-22 08:02
TiffTags.pyo	4.9 KB	-rw-r--r--	2024-02-22 08:02
WalImageFile.py	5.39 KB	-rw-r--r--	2024-02-22 08:02
WalImageFile.pyc	2.13 KB	-rw-r--r--	2024-02-22 08:02
WalImageFile.pyo	2.13 KB	-rw-r--r--	2024-02-22 08:02
WebPImagePlugin.py	978 B	-rw-r--r--	2024-02-22 08:02
WebPImagePlugin.pyc	1.86 KB	-rw-r--r--	2024-02-22 08:02
WebPImagePlugin.pyo	1.86 KB	-rw-r--r--	2024-02-22 08:02
WmfImagePlugin.py	4 KB	-rw-r--r--	2024-02-22 08:02
WmfImagePlugin.pyc	3.97 KB	-rw-r--r--	2024-02-22 08:02
WmfImagePlugin.pyo	3.97 KB	-rw-r--r--	2024-02-22 08:02
XVThumbImagePlugin.py	1.8 KB	-rw-r--r--	2024-02-22 08:02
XVThumbImagePlugin.pyc	1.6 KB	-rw-r--r--	2024-02-22 08:02
XVThumbImagePlugin.pyo	1.6 KB	-rw-r--r--	2024-02-22 08:02
XbmImagePlugin.py	2.39 KB	-rw-r--r--	2024-02-22 08:02
XbmImagePlugin.pyc	2.52 KB	-rw-r--r--	2024-02-22 08:02
XbmImagePlugin.pyo	2.52 KB	-rw-r--r--	2024-02-22 08:02
XpmImagePlugin.py	3.01 KB	-rw-r--r--	2024-02-22 08:02
XpmImagePlugin.pyc	2.8 KB	-rw-r--r--	2024-02-22 08:02
XpmImagePlugin.pyo	2.8 KB	-rw-r--r--	2024-02-22 08:02
__init__.py	183 B	-rw-r--r--	2024-02-22 08:02
__init__.pyc	137 B	-rw-r--r--	2024-02-22 08:02
__init__.pyo	137 B	-rw-r--r--	2024-02-22 08:02
_binary.py	1.09 KB	-rw-r--r--	2024-02-22 08:02
_binary.pyc	2.52 KB	-rw-r--r--	2024-02-22 08:02
_binary.pyo	2.52 KB	-rw-r--r--	2024-02-22 08:02

Rename

#
# The Python Imaging Library.
# $Id$
#
# global image statistics
#
# History:
# 1996-04-05 fl   Created
# 1997-05-21 fl   Added mask; added rms, var, stddev attributes
# 1997-08-05 fl   Added median
# 1998-07-05 hk   Fixed integer overflow error
#
# Notes:
# This class shows how to implement delayed evaluation of attributes.
# To get a certain value, simply access the corresponding attribute.
# The __getattr__ dispatcher takes care of the rest.
#
# Copyright (c) Secret Labs AB 1997.
# Copyright (c) Fredrik Lundh 1996-97.
#
# See the README file for information on usage and redistribution.
#

from PIL import Image
import operator, math
from functools import reduce

##
# The <b>ImageStat</b> module calculates global statistics for an
# image, or a region of an image.
##

##
# Calculate statistics for the given image.  If a mask is included,
# only the regions covered by that mask are included in the
# statistics.

class Stat:
    "Get image or feature statistics"

##
    # Create a statistics object.
    #
    # @def __init__(image, mask=None)
    # @param image A PIL image, or a precalculate histogram.
    # @param mask An optional mask.

def __init__(self, image_or_list, mask = None):
        try:
            if mask:
                self.h = image_or_list.histogram(mask)
            else:
                self.h = image_or_list.histogram()
        except AttributeError:
            self.h = image_or_list # assume it to be a histogram list
        if not isinstance(self.h, list):
            raise TypeError("first argument must be image or list")
        self.bands = list(range(len(self.h) // 256))

def __getattr__(self, id):
        "Calculate missing attribute"
        if id[:4] == "_get":
            raise AttributeError(id)
        # calculate missing attribute
        v = getattr(self, "_get" + id)()
        setattr(self, id, v)
        return v

def _getextrema(self):
        "Get min/max values for each band in the image"

def minmax(histogram):
            n = 255
            x = 0
            for i in range(256):
                if histogram[i]:
                    n = min(n, i)
                    x = max(x, i)
            return n, x # returns (255, 0) if there's no data in the histogram

v = []
        for i in range(0, len(self.h), 256):
            v.append(minmax(self.h[i:]))
        return v

def _getcount(self):
        "Get total number of pixels in each layer"

v = []
        for i in range(0, len(self.h), 256):
            v.append(reduce(operator.add, self.h[i:i+256]))
        return v

def _getsum(self):
        "Get sum of all pixels in each layer"

v = []
        for i in range(0, len(self.h), 256):
            sum = 0.0
            for j in range(256):
                sum = sum + j * self.h[i+j]
            v.append(sum)
        return v

def _getsum2(self):
        "Get squared sum of all pixels in each layer"

v = []
        for i in range(0, len(self.h), 256):
            sum2 = 0.0
            for j in range(256):
                sum2 = sum2 + (j ** 2) * float(self.h[i+j])
            v.append(sum2)
        return v

def _getmean(self):
        "Get average pixel level for each layer"

v = []
        for i in self.bands:
            v.append(self.sum[i] / self.count[i])
        return v

def _getmedian(self):
        "Get median pixel level for each layer"

v = []
        for i in self.bands:
            s = 0
            l = self.count[i]//2
            b = i * 256
            for j in range(256):
                s = s + self.h[b+j]
                if s > l:
                    break
            v.append(j)
        return v

def _getrms(self):
        "Get RMS for each layer"

v = []
        for i in self.bands:
            v.append(math.sqrt(self.sum2[i] / self.count[i]))
        return v

def _getvar(self):
        "Get variance for each layer"

v = []
        for i in self.bands:
            n = self.count[i]
            v.append((self.sum2[i]-(self.sum[i]**2.0)/n)/n)
        return v

def _getstddev(self):
        "Get standard deviation for each layer"

v = []
        for i in self.bands:
            v.append(math.sqrt(self.var[i]))
        return v

Global = Stat # compatibility